1351040205 has 16 divisors (see below), whose sum is σ = 2169889920. Its totient is φ = 717812928.

The previous prime is 1351040191. The next prime is 1351040221. The reversal of 1351040205 is 5020401531.

It is not a de Polignac number, because 1351040205 - 2⁴ = 1351040189 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 167290 + ... + 175179.

It is an arithmetic number, because the mean of its divisors is an integer number (135618120).

Almost surely, 2^1351040205 is an apocalyptic number.

1351040205 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1351040205 is a deficient number, since it is larger than the sum of its proper divisors (818849715).

1351040205 is a wasteful number, since it uses less digits than its factorization.

1351040205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 342740.

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 1351040205 is about 36756.4988131351. The cubic root of 1351040205 is about 1105.4932395295.

Adding to 1351040205 its reverse (5020401531), we get a palindrome (6371441736).

The spelling of 1351040205 in words is "one billion, three hundred fifty-one million, forty thousand, two hundred five".